Close up of the empty barnacle shells which have a cone shaped shell-wall comprising a number of calcareous plates. In acorn barnacles the shell-wall consists of 6 greyish-white plates and there is also a membranous basal plate. The opening at the top of the 'cone' is diamond-shaped.
One of the barnacles has been knocked off but can still see the basal plate by which it was attached (middle left of photo).
1 comment:
A beauty all its own!
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